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Questions tagged [redux-observable]

redux-observable is a redux middleware for performing side effects (epics) using RxJS.

redux-observable is a redux middleware for performing side effects (epics) using RxJS.

Developer documentation and resources:

683 questions
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How to create generic async request epics that uses typesafe-actions AsyncCreator to simplify handling api request flows in Redux

I am a newbie struggling to understand the best architecture for relating epics to async actions in Typescript redux environment.... Is it possible to create a generic async request epic for a given typesafe-actions AsyncCreator instance? I have had…
anon_dcs3spp
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How to emit event each action

I am an entry level developer of RxJS , I use react, redux, react-redux, redux-observable, above of all in my side project; but I can not figure out , why can not my epic code blocks work as I want , hopes somebody helps my out. /* store…
hex0x02
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Is there a better solution of this RxJS epic stream?

I have a redux state using redux-observable's epics. I need to solve showing a message after a user deletes an object or more objects. There are two ways how to delete an object: by action deleteObject(id: string) which call deleteObjectFulfilled…
tomaass
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How to correctly manage fetch errors response with observables and RxJS?

I just recovered a simple auth app built with ReactJS, redux-observable and RxJS. I want to implement an error handler when the API backend send a response > 400. Actually, there is an epic that handle login process on LOGIN_REQUEST event: const…
Sylvain DNS
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switchMap distincted by property in RxJs

Let's say, I have a stream of actions. Each action is assigned some id. Like this: const actions$ = of({ id: 1 }, { id: 2 }, { id: 1 }); Now, for each action, I want to perform some logic in switchMap: actions$.pipe(switchMap(a => /* some…
cezn
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Dispatch multiple actions from in redux-observable

I am trying to dispatch multiple actions to redux. Here is my code action$.pipe( ofType(trigger), mergeMap(({ payload }) => from(endpoint(payload)).pipe( map(response => // this works fine //…
Adam
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how to test RxJs debounced epics?

I'm trying to write a test function to a redux-observable epic. The epic works fine inside the app and I can check that it correctly debounces the actions and waits 300ms before emitting. But for some reason while I'm trying to test it with jest the…
Victor Ribeiro da Silva Eloy
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React-Router-DOM | URL gets redirected to the root Path

I have set an AppRouter with React-Router-DOM. Version 4. I have a table with Links attached to them, and I fetch data from the server, for each one. I want to see the details screen, of each item, when I click the Link in the table. That doesn't…
user10104341
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Combining the results of an outer & inner observable into a single parameter (array) for the next map method

What I'm trying to do is similar to combineLatest, but the second (inner) observable depends on the response from the first ajax.get('/first-url') .map(res => new Thing(res.response) .someMap(thing => …
Jason Spradlin
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React + Redux-Observable Timeout Marble Testing

I am creating a web app using React and Redux Observables and I would like to create a unit test for the timeout scenario of one of my epics. Here is the Epic: export const loginUserEpic = (action$: ActionsObservable, store, { ajax, scheduler…
Felipe
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redux-observable can't catch error from emitted action, error stops action stream

If a js error occurs as the result of an emitted action from a redux-observable epic then it stops all epics from listening to new actions. This is pretty nasty since on the front-end it still appears as if the app is working but in the background…
JamesPlayer
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redux-observable wont be execute after catchError

I am using redux-observable in my angular project. I have an updateNode function in my epics with catchError handling. I dispatch action DB_UPDATE_NODE many times and everything work well. However the time action execute catchError when I dispatch…
Amir Movahedi
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Understanding merge in rxjs6 (and redux-observable specifically)

Context: I'm trying to use redux-observable with rxjs v6 to trigger multiple actions after fetching a resource. Problem: I can trigger a single action after fetching the resource no problem; but my attempt to trigger multiple actions has me stumped.…
Magnus
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How to use signalR with Redux-observable?

I have created Angular SPA application. I am using ASP.net core at server side & client side state is handled by redux-observable using action-reducer-epics. The structure is like : i have configured store, root epics and root reducer and then each…
S2K
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rxjs observable debounceTime inner next ignored

It seems that debounceTime ignores inner calls to it's subjects next method: var subject: Subject = new Subject(); subject.pipe( tap((a) => console.log("tab:" + a)), debounceTime(300), ).subscribe((a) => { …
user1859022
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